Roll slitting and winding machine

ABSTRACT

Roll slitting and winding machine having at least two winding rolls disposed along opposite sides of at least one supporting roll for alternately winding up a slit strip passing over the supporting roll, each of the winding rolls being supported by means of swivel arms pivotally mounted on bearing bodies, a pair of swivel arms being associated with each winding roll and with adjacent ones of the bearing bodies, with one of the arm pairs being associated with one of the winding rolls for a strip fed to one side of the supporting drum and the other of the arm pairs being associated with the other of the winding rolls for an adjoining strip fed to the other side of the supporting roll.

United States Patent 1 1 Held [ ROLL SLITTING AND WINDING MACHINE [76] Inventor: Franz Held, Gross Zimmern,

Germany 221 Filed: Oct. 4, 1971 21 App1.No.:186,355

[4 May 13, 1975 Primary ExuminerJohn W. Huckert Assistant Eruminer-Edward J. McCarthy Attorney, AgLHI, or Firm-Watson. Cole, Grindle & Watson [57] ABSTRACT Roll slitting and winding machine having at least two winding rolls disposed along opposite sides of at least one supporting roll for alternately winding up a slit strip passing over the supporting roll, each of the winding rolls being supported by means of swivel arms pivotally mounted on hearing bodies, a pair of swivel arms being associated with each winding roll and with adjacent ones of the bearing bodies, with one of the arm pairs being associated with one of the winding rolls for a strip fed to one side of the supporting drum and the other of the arm pairs being associated with the other of the winding rolls for an adjoining strip fed to the other side of the supporting roll.

2 Claims, 2 Drawing Figures FATENTED HAY I 3% 3.883.085

SHEU 1 UP 2- Pmmanm 3.883.085

SHEET 2 BF 2 ROLL SLITTING AND WINDING MACHINE This invention relates to roll slitting and winding machines having winding rolls with pivoting arms for each, each individual strip wound onto the rolls being supported alternately on opposite sides of a common supporting drum or on two supporting drums parallel to one another. Such an arrangement offers the advantage that each individual winding roll is mounted in a separate pair of pivoting arms. Accordingly, variable diameters of the individual winding roll, which may possibly develop through different thicknesses of the web, have no harmful effect. Rather, each individual winding roll can be forced by a separate pressure element against the supporting drum and thus the tautness of the winding may be more precisely adjusted.

With such machines, the adjustment of the individual pivoting arms for example, in the case of a changeover from one width of the strip to another is extraordinarily time-consuming. However, it is quite difficult to align the pivoting arms of one roll with the pivoting arms of the other roll which is located on the other side of the same or on another supporting drum, and developing through the same longitudinal section. Alignment must take place in such a way that the one front face of the one roll and that of the other roll be located exactly in the same plane. If not, then the strips will run untrue and render the rolls unusable.

According to the invention, this disadvantage is eliminated by reason of the pivoting arms being mounted pivotably in bearing bodies which may be adjusted parallel to the axis of the supporting drum. Also, each bearing body is provided with two arms, one of which carries the winding shaft of a strip fed to the one side of the supporting drum and the other carries the winding shaft of the adjoining strip fed to the other side of the same or a second supporting drum. Since these two arms assume in an axial direction, a somewhat definite position relative to one another, independently of their specific deflection it will be assured that the front edges 4 of two rolls, which are wound up at separate winding places and which edges are produced by the same longitudinal section, will be aligned precisely with one another.

The position of the bearing bodies relative to the one or more supporting drums is of no consequence. It will be effective, however, if these bearing bodies are adjustable along a guide disposed above the supporting drum. This guide can be extended at least on one side of the machine projecting beyond the operating width of the machine. Therefore, it is possible to move the bearing bodies with their pivoting arms attached to them and which are not needed for the specific winding process into a reserve position from which they can, in case of need, easily and quickly again be brought into an operating position.

An embodiment of the inventive idea has been shown schematically in the drawing by way of example.

FIG. 1 shows a side view of the roll slitting and winding machine. and

FIG. 2 shows a view of a part of the machine looking along line 2-2 of FIG. I.

The web proceeds along a path 1 in the direction of the arrow and is slit longitudinally between lower knives 2 and upper knives 3 into a number of strips. These strips will first move about a supporting drum 4 adjacent one another. The strip, which lies nearest the observer of FIG. 1, moves toward a winding roll 5, while the next strip is wound on a winding roll 6. The next strip passing over drum 4 is then wound onto an additional winding roll 7, which is located in FIG. 1 behind roll 5 and which can be seen only in FIG. 2. The next strip is wound onto a winding roll 8 located behind roll 6. In the same manner. the strips slit from the web will be fed alternately to the winding site located alternately in front of supporting drum 4 and behind said support drum, as can be seen in FIG. 2.

The winding roll 5 is mounted by means of a winding shaft at one end of pivoting arms 9 and 10. Arm 9 is pivotable about an axle 11 secured to a side bar 12 of bearing body 13 which may be made integral with bar 12. Similarly, arm 10 also is pivotable about an axle secured to a side bar 14 of a bearing body 15. Arm 16, which carries winding roll 6 on one end thereof. also can be pivoted about the same axle of side bar I4. The other side of this roll is suspended from an arm 17 which is pivotable about an axle located in a side bar 18 of bearing body 19. Arm 20, pivotally mounted on the same axle, carries one side of winding roll 7, the other side of arm 7 being held by an arm 21. The latter is pivotable about an axle secured to side bar 22 of a bearing body 23. The same axle serves also as a pivotal mount for arm 24 which bears against one side of winding roll 8. The rolls lying further to the left in FIG. 2 are all suspended in the same manner from swiveling arms, which have been pivotally mounted on additional bearing bodies.

A rib is provided on each swiveling or pivotal arm with which a piston rod is engaged. Piston rods 25 engaging the winding roll arms on one side of the supporting drum transfer pressure from their associated cylinders 26 to the winding rolls in a manner whereby the winding roll contact pressure may be regulated. In the same manner, the winding rolls located on the other side of supporting drum 4 are each pressed by one piston rod 27 against the supporting drum in a controlled manner by means of the pressure in cylinders 28. All cylinders 26 and 28 are pivotally suspended from lateral bars of their respective bearing bodies.

Each bearing body may be fixed and adjusted along a dove-tailed guide 29 attached to a bearer 30 which in turn is secured to a cover plate 31 or to the corresponding bars of the two lateral frames 32. Bearer 30 extends, at least on one side, beyond the wall of the frame located there so that the bearing bodies with the pivoting arms located thereon can be pushed out of operating range of the machine when they are not needed. From FIG. 1, it becomes clear that the lateral frames have an opening sufficient for this purpose.

In FIG. 2 it can be seen that bearing body 15 carries the two pivoting arms 10 and 16, bearing body 19 carries the two pivoting arms 17 and 20, and bearing body 23 carries the two pivoting arms 21 and 24. These arm pairs, each being pivotally mounted on one bearing body, are not axially adjustable, so that their mutual position always remains the same in an axial direction. As a result, it is possible that with proper development of the winding shafts, the left front side of winding roll 5 and the right front side of roll 6, produced by the same longitudinal cut, are located in precisely the same plane, which means that in FIG. 2 they cover each other precisely. The same is true with respect to the left front side of roll 6 and the right front side of roll 7, which likewise are produced by the same longitudinal slit. because the pivoting arms 17 and 20 are disposed on the same bearing body 19. Finally, the relationships between rolls 7 and 8 also are the same, because arms 21 and 24 are disposed in the same bearing body 23. The same is also true for the additional winding rolls not shown in FIG. 2.

For another width of the strips to be slit and wound up. other than the width for which the rolls in FIG. 2 are designed, the bearing bodies must be shifted accordingly. Since, however, two pivoting arms are mounted on each bearing body, such shifting or resetting becomes exceedingly simple. For example. one can proceed in such a way that, starting from arm 9, arm 10 may be set at a distance corresponding to the width of the strip provided. and it can be measured by means of a scale or by means of a gauge. With this adjustment the position of arm 16 will simultaneously be fixed, as a result of which, in turn, it may be assured that the front sides of the two rolls for adjacent strips will lie precisely in one plane. Arm 17 may then be adjusted with a scale or a gauge, as a result of which the position of arm 20 for the next roll will be automatically set. In such manner, resetting is quite simple.

This resetting may be effected by means of a gear 33 mounted in each bearing body which engages with a spur rack disposed along guide 29. By turninga hand wheel 34, each bearing body 13 may be shifted along its guide and may thereafter be fixed by any suitable means. Those bearing bodies which are not needed for the winding process may be moved along guide 29 to a position outside the wall of the frame. Such bearing bodies may be thereafter moved back if needed again into the operating range of the machine. for example. for the slitting of narrower strips.

Although each winding roll is described as being mounted by means of winding shafts provided on opposite ends of their respective swivel arms, it should be noted that the swivel arms may alternatively be provided with cones or other clamping devices, into which winding cores are received for rolling up the strip. However. such cones or clamping devices must be so arranged that the distance between the pivoting arm and the front side of the roll carried by it is always the same so as to assure that the front sides of two rolls developing as a result of the same longitudinal cut by mounting of the pertinent swiveling arms always lie in the same bearing body in one and the same plane.

What is claimed is:

1. Roll cutter and winding machine having spaced side frame members; comprising. at least one winding roll each disposed on opposite sides of a supporting roll for alternately winding up a cut strip from a web passing over said supporting roll, said supporting roll extending between said side frame members, a pair of swivel arms for each of said winding rolls, one of said winding rolls being rotatably mounted between one pair of said arms at one end thereof, the other of said winding rolls being rotatably mounted between the other pair of said arms at one end thereof, at least three adjacent bearing bodiesfor said winding rolls, a single guide mounting said bearing bodies for adjustable movement in a direction parallel to the axis of said winding rolls, one arm of each said one pair and said other pair of said arms being pivotally mounted at the opposite ends thereof to the middle one of said bearing bodies. and the other arm of each said one pair and said other pair of said arms being. pivotally mounted respectively to the outer ones of said bearing bodies.

2. The machine according to claim 1 wherein said guide includes a guide plate extending outwardly through an opening provided in one of said side frame members. 

1. Roll cutter and winding machine having spaced side frame members; comprising, at least one winding roll each disposed on opposite sides of a supporting roll for alternately winding up a cut strip from a web passing over said supporting roll, said supporting roll extending between said side frame members, a pair of swivel arms for each of said winding rolls, one of said winding rolls being rotatably mounted between one pair of said arms at one end thereof, the other of said winding rolls being rotatably mounted between the other pair of said arms at one end thereof, at least three adjacent bearing bodies for said winding rolls, a single guide mounting said bearing bodies for adjustable movement in a direction parallel to the axis of said winding rolls, one arm of each said one pair and said other pair of said arms being pivotally mounted at the opposite ends thereof to the middle one of said bearing bodies, and the other arm of each said one pair and said other pair of said arms being pivotally mounted respectively to the outer ones of said bearing bodies.
 2. The machine according to claim 1 wherein said guide includes a guide plate extending outwardly through an opening provided in one of said side frame members. 